Bill Smith
Founder, 1929-2014
Speedy Bill
Since 1952
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Shop Pro Shocks At Speedway Motors

Since 1983 Pro Shocks has been the world leader in shock technology and innovation. Using a unique blend of engineering, on track testing, and technical experience, Pro Shocks stands heads above the competition in quality and performance. Find a full selection of Pro Shocks and Pro Shock parts at the best prices at Speedway Motors.

Featured Products
Pro Shocks SM400 Chrome Mustang II Replacement Shock
Pro Shocks SM400 Chrome Mustang II Replacement Shock
(Part #582SM400)
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Stock mount style, modern gas cell shock. Fits where your original Mustang II shock went. Lower mount accepts a 7/16" bolt. Has a 10" ride height.

Pro Shocks SM300 Pro Street Rod Shock, 9 Inch Ride Height
Pro Shocks SM300 Pro Street Rod Shock, 9 Inch Ride Height
(Part #582SM300)
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Polished, chrome plated steel body shocks with 5/8" I.D. urethane bushings. Includes steel sleeves for use with 1/2" mounting hardware.

Note: Not for use with coil-over springs.

Pro Street Rod Shock Chart (GIF)

Pro Shocks SM401 Pro Street Rod Shock, 10-1/2 Inch Ride Height
Pro Shocks SM401 Pro Street Rod Shock, 10-1/2 Inch Ride Height
(Part #582SM401)
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Polished, chrome plated steel body shocks with 5/8" I.D. urethane bushings. Includes steel sleeves for use with 1/2" mounting hardware.

Note: Not for use with coil-over springs.

Pro Street Rod Shock Chart (GIF)

Pro Shocks SM500 Pro Street Rod Shock, 12 Inch Ride Height
Pro Shocks SM500 Pro Street Rod Shock, 12 Inch Ride Height
(Part #582SM500)
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Polished, chrome plated steel body shocks with 5/8" I.D. urethane bushings. Includes steel sleeves for use with 1/2" mounting hardware.

Note: Not for use with coil-over springs.

Pro Street Rod Shock Chart (GIF)

"Pro Shocks" Page 1 of 9

  • Pro Shocks PG753 Pro PG Series Steel Shock-7 Inch Stroke, Comp 5/Reb 3
    Pro Shocks PG753 Pro PG Series Steel Shock-7 Inch Stroke, Comp 5/Reb 3
    (Part #582PG753)
    x
                

    These steel-bodied Pro Gas mono-tube shocks from Pro Shocks have a state-of-the-art design with a high-tech floating piston that avoids dumping and cavitation. They are the only gas shocks that can be run with high gas pressure as well as any amount of low pressure, all the way down to zero.

    In fact, Pro Gas shocks will continue to provide 100% dampening even with a loss of gas pressure. This 7" stroke length has a variety of dampening rates.

    • Compressed length: 12-1/2"
    • Extended Length: 19-1/2"

    Rebuildable and revalvable through Pro Shocks!

  • Pro Shocks AC750B Large Aluminum Threaded, 7 Inch Shock, Comp 5/Reb 5
    Pro Shocks AC750B Large Aluminum Threaded, 7 Inch Shock, Comp 5/Reb 5
    (Part #582AC750B)
    x
                

    Threaded aluminum body shocks are just the ticket for late models. Sold with bearing ends.

    • 7" stroke
    • 2.00 diameter shocks
    • 12-3/4" comp. length
    • 19-1/2" ext. length

    Double Adjustable Rebound Shock Graph (GIF)

    Double Adj. Rebound Application Chart (GIF)

     

  • Pro Shocks WB74BK Large Body Steel Shock, 7 Inch Stroke, Comp 4/Reb 4
    Pro Shocks WB74BK Large Body Steel Shock, 7 Inch Stroke, Comp 4/Reb 4
    (Part #582WB74BK)
    x
                

    The newly redesigned PRO WB series steel shocks now feature hardened shafts with a removable rod end while still maintaining their superior, yet economical gas cell design.  A snap ring groove has also been added to allow the use of a coilover kit.  These are ideal for IMCA Modified-type race cars.

    • Compression Length: 13", Extension Length: 20"
    • Compression 4, Rebound 4

    Pro Welded Bearing Shock Chart Application (GIF)

    Notes

    Do not attempt to modify or add snap ring grooves as this will cause the shock absorber to leak.  Pro will not warranty any shocks with added or modified grooves.
  • Pro Shocks C250/GM300 1955-1957 S/B Chevy V8 Front Coilover Conversion
    Pro Shocks C250/GM300 1955-1957 S/B Chevy V8 Front Coilover Conversion
    (Part #58231006)
    x
                

    Pro Coilover conversion kits feature a steel-body coilover front shock which bolts directly in place of your factory front shock. Requires no welding, cutting or modifications to your original Tri-Five Chevy frame.

    Sold as a PAIR.

  • Pro Shocks PG740 Pro PG Series Steel Shock-7 Inch Stroke, Comp 4/Reb 4
    Pro Shocks PG740 Pro PG Series Steel Shock-7 Inch Stroke, Comp 4/Reb 4
    (Part #582PG740)
    x
                

    These steel-bodied Pro Gas mono-tube shocks from Pro Shocks have a state-of-the-art design with a high-tech floating piston that avoids dumping and cavitation. They are the only gas shocks that can be run with high gas pressure as well as any amount of low pressure, all the way down to zero.

    In fact, Pro Gas shocks will continue to provide 100% dampening even with a loss of gas pressure. This 7" stroke length has a variety of dampening rates.

    • Compressed length: 12-1/2"
    • Extended Length: 19-1/2"

    Rebuildable and revalvable through Pro Shocks!

  • Pro Shocks A860B Pro Smooth Large Body Shock 8 Inch Shaft Comp 6/Reb 6
    Pro Shocks A860B Pro Smooth Large Body Shock 8 Inch Shaft Comp 6/Reb 6
    (Part #582A860B)
    x
                Pro shocks now offers their entire line in Ultimate shocks! All Ultimate  Pro Shocks are serial numbered and dyno tested. Each aluminum Ultimate  Pro Shock comes with a serial numbered dyno graph. The proof of quality  and superiority is packaged with each Ultimate Pro Shock!

    8" Shaft.

  • Pro Shocks A930B Pro Ultimate Large Shock, 9 Inch Shaft, Comp 3/Reb 3
    Pro Shocks A930B Pro Ultimate Large Shock, 9 Inch Shaft, Comp 3/Reb 3
    (Part #582A930B)
    x
                

    Aluminum body, 9" shaft with bearings.
    Pro Shocks now offers their entire line in Ultimate Shocks. All Ultimate Pro shocks are serial numbered and dyno tested, each aluminum Ultimate Pro shock comes with a serial numbered dyno graph. The proof of quality and superiority is packaged with each Ultimate Pro Shock.

    Comp. Length: 14-1/2"
    Ext. Length: 23-1/2"

    Pro Aluminum Shock Chart Application (GIF)

  • Pro Shocks ASB514B Small Body Threaded Alum 5 Inch Shock, Comp 1/Reb 4
    Pro Shocks ASB514B Small Body Threaded Alum 5 Inch Shock, Comp 1/Reb 4
    (Part #582ASB514B)
    x
                

    Pro Shock Ulitmate Series shocks are dynode serial numbered and come with a dyno sheet. ASB Series shocks feature a small threaded body shock.

    Comp. Length: 10-3/8"
    Ext. Length: 13-3/8"

    Pro Threaded Small Body Alum. Shock Chart Application (GIF)

  • Pro Shocks SBA653B Smooth Small Body Alum, 6 Inch Shaft, Comp 5, Reb 3
    Pro Shocks SBA653B Smooth Small Body Alum, 6 Inch Shaft, Comp 5, Reb 3
    (Part #582SBA653B)
    x
                

    Pro Shocks Ultimate Series shocks have dyno serial numbers and come with a dyno sheet. SBA Series Shocks feature a small smooth non-coilover body shock.

    Comp. Length: 10-3/8"
    Ext. Length: 13-3/8"

    Pro Smooth Small Body Alum. Shock Chart Application (GIF)

  • Pro Shocks WB791BK WB Large Steel Shock, 7 Inch Stroke, Comp 9/Reb 1
    Pro Shocks WB791BK WB Large Steel Shock, 7 Inch Stroke, Comp 9/Reb 1
    (Part #582WB791BK)
    x
                

    The newly redesigned PRO WB series steel shocks now feature hardened shafts with a removable rod end while still maintaining their superior, yet economical gas cell design.  A snap ring groove has also been added to allow the use of a coilover kit.  These are ideal for IMCA Modified-type race cars.

    • Compression Length: 13", Extension Length: 20"
    • Compression 9, Rebound 1

    Pro Welded Bearing Shock Chart Application (GIF)

    Notes

    Do not attempt to modify or add snap ring grooves as this will cause the shock absorber to leak.  Pro will not warranty any shocks with added or modified grooves.
  • Pro Shocks TA740 TA Series 7 Inch Stroke Steel LB Shock, Comp 4, Reb 4
    Pro Shocks TA740 TA Series 7 Inch Stroke Steel LB Shock, Comp 4, Reb 4
    (Part #582TA740)
    x
                

    Pro's new TA series steel shocks feature a gas cell and are IMCA approved.  The TA series will work with the coil over kits.  You must order end separately.

    Comp. Length: 12-1/2"
    Ext. Length: 19-1/2"

    Pro Steel Shocks Chart Application (GIF)
  • Pro Shocks A8311B Large Aluminum Smooth Shock-8 In Shaft-Comp 3/Reb 11
    Pro Shocks A8311B Large Aluminum Smooth Shock-8 In Shaft-Comp 3/Reb 11
    (Part #582A8311B)
    x
                Pro shocks now offers their entire line in Ultimate shocks! All Ultimate Pro Shocks are serial numbered and dyno tested. Each aluminum Ultimate Pro Shock comes with a serial numbered dyno graph. The proof of quality and superiority is packaged with each Ultimate Pro Shock!

    8" Shaft.

  • Pro Shocks A645B Smooth Large Body Aluminum-6 In. Shaft, Comp 4, Reb 5
    Pro Shocks A645B Smooth Large Body Aluminum-6 In. Shaft, Comp 4, Reb 5
    (Part #582A645B)
    x
                

    Pro Shocks Ultimate Series shocks have dyno serial numbers and come with a dyno sheet. "A" Series Shocks feature a large smooth body shock.

    Comp. Length: 11-1/2"
    Ext. Length: 17-1/2"

    Pro Smooth Large Body Alum. Shock Chart Application (GIF)

  • Pro Shocks A943B Pro Ultimate Large Shock, 9 Inch Shaft, Comp 4/Reb 3
    Pro Shocks A943B Pro Ultimate Large Shock, 9 Inch Shaft, Comp 4/Reb 3
    (Part #582A943B)
    x
                

    Aluminum body, 9" shaft with bearings.
    Pro Shocks now offers their entire line in Ultimate Shocks. All Ultimate Pro shocks are serial numbered and dyno tested, each aluminum Ultimate Pro shock comes with a serial numbered dyno graph. The proof of quality and superiority is packaged with each Ultimate Pro Shock.

    Comp. Length: 14-1/2"
    Ext. Length: 23-1/2"

    Pro Aluminum Shock Chart Application (GIF)

  • Pro Shocks C200/SR500 64-74 GM B/B Coilover Front Shock Conversion Kit
    Pro Shocks C200/SR500 64-74 GM B/B Coilover Front Shock Conversion Kit
    (Part #58231005)
    x
                

    Pro Coilover conversion kits feature a steel-body coilover front shock which bolts directly in place of your factory front shock. Requires no welding, cutting or modifications to your original frame. Sold as a PAIR.

    Fits the following applications:

    • Skylark '64-'67
    • Camaro '67-'69
    • El Camino/Chevelle'64-'67
    • Nova/Chevy II '68-'74
    • Corvette '63-'82
    • Cutlass '64-'67
    • Omega '73-'74
    • Firebird '67-'69
    • LeMans/GTO/Tempest '64-'72
  • Pro Shocks SS100 PRO Street Stock Shock, Front, Non-Adjustable
    Pro Shocks SS100 PRO Street Stock Shock, Front, Non-Adjustable
    (Part #582SS100)
    x
                

    Pro street stock shocks are designed to replace the stock shocks in the original mounting locations. Non-adjsutable design featues extra heavy damping designed for the punishment of street stock racing.

    Pro Shock Application Chart (GIF)

  • Pro Shocks A838B Aluminum Smooth Large Shock-8 Inch Shaft-Comp 3/Reb 8
    Pro Shocks A838B Aluminum Smooth Large Shock-8 Inch Shaft-Comp 3/Reb 8
    (Part #582A838B)
    x
                Pro shocks now offers their entire line in Ultimate shocks! All Ultimate Pro Shocks are serial numbered and dyno tested. Each aluminum Ultimate Pro Shock comes with a serial numbered dyno graph. The proof of quality and superiority is packaged with each Ultimate Pro Shock!

    8" Shaft.

  • Pro Shocks A760B Aluminum 7 Inch Shock - Large Body, Comp 6, Reb 6
    Pro Shocks A760B Aluminum 7 Inch Shock - Large Body, Comp 6, Reb 6
    (Part #582A760B)
    x
                

    Pro Shocks Ultimate Series shocks have dyno serial numbers and come with a dyno sheet. "A" Series Shocks feature a large smooth body shock.

    Comp. Length: 12-1/2"
    Ext. Length: 19-1/2"

    Application Chart (GIF)

  • Pro Shocks A84.5B Alum Smooth Large Shock-8 In. Shaft-Comp 4.5/Reb 4.5
    Pro Shocks A84.5B Alum Smooth Large Shock-8 In. Shaft-Comp 4.5/Reb 4.5
    (Part #582A84.5B)
    x
                Pro shocks now offers their entire line in Ultimate shocks! All Ultimate Pro Shocks are serial numbered and dyno tested. Each aluminum Ultimate Pro Shock comes with a serial numbered dyno graph. The proof of quality and superiority is packaged with each Ultimate Pro Shock!

    8" Shaft.

  • Pro Shocks SBA742B Alum 7 Inch Shock-Small 7 Inch Shaft, Comp 4/Reb 2
    Pro Shocks SBA742B Alum 7 Inch Shock-Small 7 Inch Shaft, Comp 4/Reb 2
    (Part #582SBA742B)
    x
                

    Pro Shocks ultimate series shocks are dynode serial numbered and come with a dyno sheet.  SBA series shock feature a small smooth non-coilover body shock.

    Comp. Length: 10-3/8"
    Ext. Length: 13-3/8"

    Application Chart (GIF)

  • Pro Shocks A664B-7 Large Aluminum 6 Inch Shock-7 In Shaft-Comp 6/Reb 4
    Pro Shocks A664B-7 Large Aluminum 6 Inch Shock-7 In Shaft-Comp 6/Reb 4
    (Part #582A664B7)
    x
                6" aluminum body, 7" shaft with bearing.
    Pro Shocks now offers their entire line in Ultimate Shocks! All Ultimate Pro shocks are serial numbered and dyno tested, each aluminum ultimate Pro shock comes with a serial numbered dyno graph. The proof of quality and superiority is packaged with each Ultimate Pro Shock.

    Save weight! If you run the 7" shaft shocks in the 6" body, your shock is working more in the middle of its travel.

    Comp. Length: 11-3/8"
    Ext. Length: 17-3/8"

  • Pro Shocks ASB741B Small Body Threaded Alum 7 Inch Shock, Comp 4/Reb 1
    Pro Shocks ASB741B Small Body Threaded Alum 7 Inch Shock, Comp 4/Reb 1
    (Part #582ASB741B)
    x
                

    Pro Shocks ultimate series shocks are dynode serial numbered and come with a dyno sheet.  ASB series shock feature a small threaded body shock.

    Comp. Length: 12-3/8"
    Ext. Length: 19-3/8"

    Pro Alum. Small Body Threaded Shock Chart Application (GIF)

  • Pro Shocks SBA752B Alum 7 Inch Shock-Small 7 Inch Shaft, Comp 5/Reb 2
    Pro Shocks SBA752B Alum 7 Inch Shock-Small 7 Inch Shaft, Comp 5/Reb 2
    (Part #582SBA752B)
    x
                

    Pro Shocks ultimate series shocks are dynode serial numbered and come with a dyno sheet.  SBA series shock feature a small smooth non-coilover body shock.

    Comp. Length: 10-3/8"
    Ext. Length: 13-3/8"

    Application Chart (GIF)

  • Pro Shocks A938B Pro Ultimate Large Shock, 9 Inch Shaft, Comp 3/Reb 8
    Pro Shocks A938B Pro Ultimate Large Shock, 9 Inch Shaft, Comp 3/Reb 8
    (Part #582A938B)
    x
                

    Aluminum body, 9" shaft with bearings.
    Pro Shocks now offers their entire line in Ultimate Shocks. All Ultimate Pro shocks are serial numbered and dyno tested, each aluminum Ultimate Pro shock comes with a serial numbered dyno graph. The proof of quality and superiority is packaged with each Ultimate Pro Shock.

    Comp. Length: 14-1/2"
    Ext. Length: 23-1/2"

    Pro Aluminum Shock Chart Application (GIF)

  • Pro Shocks AC753B Large Aluminum Threaded, 7 Inch Shock, Comp 5/Reb 3
    Pro Shocks AC753B Large Aluminum Threaded, 7 Inch Shock, Comp 5/Reb 3
    (Part #582AC753B)
    x
                

    Threaded aluminum body shocks are just the ticket for late models. Sold with bearing ends.

    • 7" stroke
    • 2.00 diameter shocks
    • 12-3/4" comp. length
    • 19-1/2" ext. length

    Double Adjustable Rebound Shock Graph (GIF)

    Double Adj. Rebound Application Chart (GIF)

     

  • Pro Shocks A935B Pro Ultimate Large Shock, 9 Inch Shaft, Comp 3/Reb 5
    Pro Shocks A935B Pro Ultimate Large Shock, 9 Inch Shaft, Comp 3/Reb 5
    (Part #582A935B)
    x
                

    Aluminum body, 9" shaft with bearings.
    Pro Shocks now offers their entire line in Ultimate Shocks. All Ultimate Pro shocks are serial numbered and dyno tested, each aluminum Ultimate Pro shock comes with a serial numbered dyno graph. The proof of quality and superiority is packaged with each Ultimate Pro Shock.

    Comp. Length: 14-1/2"
    Ext. Length: 23-1/2"

    Pro Aluminum Shock Chart Application (GIF)

  • Pro Shocks WB93BK Large Body Steel Shock, 9 Inch Stroke, Comp 3/Reb 3
    Pro Shocks WB93BK Large Body Steel Shock, 9 Inch Stroke, Comp 3/Reb 3
    (Part #582WB93BK)
    x
                

    The newly redesigned PRO WB series steel shocks now feature hardened shafts with a removable rod end while still maintaining their superior, yet economical gas cell design.  A snap ring groove has also been added to allow the use of a coilover kit.  These are ideal for IMCA Modified-type race cars.

    • Compression Length: 14.5", Extension Length: 23.25"
    • Compression 3, Rebound 3 

    Pro Welded Bearing Shock Chart Application (GIF)

    Notes

    Do not attempt to modify or add snap ring grooves as this will cause the shock absorber to leak.  Pro will not warranty any shocks with added or modified grooves.
  • Pro Shocks WB97BK Large Body Steel Shock, 9 Inch Stroke, Comp 7/Reb 7
    Pro Shocks WB97BK Large Body Steel Shock, 9 Inch Stroke, Comp 7/Reb 7
    (Part #582WB97BK)
    x
                

    The newly redesigned PRO WB series steel shocks now feature hardened shafts with a removable rod end while still maintaining their superior, yet economical gas cell design.  A snap ring groove has also been added to allow the use of a coilover kit.  These are ideal for IMCA Modified-type race cars.

    • Compression Length: 14.5", Extension Length: 23.25"
    • Compression 7, Rebound 7 

    Pro Welded Bearing Shock Chart Application (GIF)

    Notes

    Do not attempt to modify or add snap ring grooves as this will cause the shock absorber to leak.  Pro will not warranty any shocks with added or modified grooves.
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